<div class="load-tip">
  <!-- <div class="loading" *ngIf="loadOver===undefined">数据加载中</div> -->
  <div class="load-more" (click)="getMoreData()" *ngIf="!loadOver">点击加载更多</div>
  <div class="loading-finish" *ngIf="loadOver">没有更多数据了</div>
</div>
